Method and apparatus for dispensing a fluid substance

Details Method and apparatus for dispensing a fluid substance Method and apparatus for dispensing a fluid substance

1988-12-08

1991-04-02

Skaggs, H. Grant

Dispensing

Plural sources, compartment, containers and/or spaced jacket

With discharge assistant for each source

222137, 222391, 222324, 222326, 222327, 433 90, 604224, 604228, B67D 552

Patent

active

050041240

ABSTRACT:
A method and apparatus for controllably dispensing a fluid substance on a repetitive, variable basis utilize a piston-cylinder type handheld finger operated dispenser. The dispenser includes a generally cylindrical body for containing a supply of the fluid substance to be dispensed, a formed tip through which the fluid substance may be dispensed, a piston and a piston rod for use in dispensing the fluid substance from the cylinder and a formed gouge or actuator for initiating movement of the piston rod to dispense the fluid substance in amounts controlled by the skill and desire of the user. The actuator is formed from a harder material than the material used to form the piston rod so that gouges or teeth are formed by the actuator during usage along the length of the piston rod, the spacing between adjacent teeth being variably selected by the user. A specific application of the dispenser is for use in dispensing topical dental medicine by a user in his own oral cavity.

REFERENCES:
patent: 1709691 (1929-04-01), Steuer
patent: 2303947 (1942-12-01), Moore
patent: 2731176 (1956-01-01), Crewe
patent: 3221409 (1965-12-01), Thiel et al.
patent: 3977574 (1976-08-01), Thomas
patent: 4364388 (1982-12-01), Cech
patent: 4444560 (1984-04-01), Jacklich
patent: 4566610 (1986-01-01), Herb
patent: 4641766 (1987-02-01), Vlasich
patent: 4693684 (1987-09-01), Blatherwick et al.
patent: 4826053 (1989-05-01), Keller

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